cluster heads aggregate the data from various nodes and communicate with the far distant base station. A wireless sensor network (WSN) typically consists of The deployment methods of the cluster-based WSN and a large numberof resource constrained sensor nodes. their physical interactions with the environment make a large number of resource constrained sensor nodes. Wireless sensor networks are developed for deployment at them vulnerable to various attacks [2, 3]. Since clusterlocations without infrastructur e support which may based WSNs are based on wireless communication links, locations without infrastructure support which may provide a solution to many applications. WSNs are mostly an attack can come from all directions and target any unguarded and the wireless medium is broadcast. This node. For instance, an adversary who hijacks a sensor makes them more vulnerable to attacks. Without proper node could paralyze the entire wireless network by security measures, an enemy can launch various kinds of disseminating false routing information. Intrusion security measures, an enemy can launch various kinds of rvnin maue,sc s ecyto n attacks in hostile environments. These attacks can disrupt prevention measures, such as encryption and the normal working of WSNs and can defeat the purpose authentication, can be used in cluster-based WSNs to of their deployment. Therefore security is an important educe intrusions, but cannot eliminate them. For aspect of these networks. Preventive mechanisms can be example, encrypton and authentication cannot defend appie to protect WSN agis soetpsofatcs against compromised nodes. Since preventive mechanisms applied to protect WSNs against some types7ofattacks. provide no surety to hold the intruder, an intrusion However, there are some attacks for which there are no y knw prvnto mehos Fo.hs ass ti detection system (IDS) running beside preventive knecessaryvetionuseso mechaism Fof itrusin detc t io mechanism will greatly increase the security of the WSN. Inethispaery wo e pesmenmhanistri d intrusion detection. Development of IDS for WSNs poses many challenges In this p(pDS be o biaent technology thatits due mainly to the limitations of resources. The methods system 7 7 7 * * teh g developed for traditional networks demand resources and the demands and restrictions of WSNs. cannot be applied to cluster-based WSNs.
Bring Your Own Device (BYOD) is a recent and growing trend. It has emerged in a business environment which allows employees to use their personal devices to access company resources for work. Organizations have started to embrace BYOD in hopes of increasing employee productivity and reducing company technology costs. However, there are many risks associated with this usage, and security is a primary concern. This paper discusses the approaches that organizations can apply to mitigate the risks, which may include policies, diverse technologies, education, and training.
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